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-rw-r--r--arch/sparc64/kernel/pci_sun4v.c116
1 files changed, 102 insertions, 14 deletions
diff --git a/arch/sparc64/kernel/pci_sun4v.c b/arch/sparc64/kernel/pci_sun4v.c
index dc79b748feaf..5174346ce35d 100644
--- a/arch/sparc64/kernel/pci_sun4v.c
+++ b/arch/sparc64/kernel/pci_sun4v.c
@@ -538,6 +538,12 @@ static int pci_sun4v_read_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn,
ret = pci_sun4v_config_get(devhandle,
HV_PCI_DEVICE_BUILD(bus, device, func),
where, size);
+#if 0
+ printk("read_pci_cfg: devh[%x] device[%08x] where[%x] sz[%d] "
+ "== [%016lx]\n",
+ devhandle, HV_PCI_DEVICE_BUILD(bus, device, func),
+ where, size, ret);
+#endif
}
switch (size) {
case 1:
@@ -571,6 +577,12 @@ static int pci_sun4v_write_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn,
ret = pci_sun4v_config_put(devhandle,
HV_PCI_DEVICE_BUILD(bus, device, func),
where, size, value);
+#if 0
+ printk("write_pci_cfg: devh[%x] device[%08x] where[%x] sz[%d] "
+ "val[%08x] == [%016lx]\n",
+ devhandle, HV_PCI_DEVICE_BUILD(bus, device, func),
+ where, size, value, ret);
+#endif
}
return PCIBIOS_SUCCESSFUL;
}
@@ -598,10 +610,13 @@ static void pbm_scan_bus(struct pci_controller_info *p,
pbm->pci_bus = pci_scan_bus(pbm->pci_first_busno,
p->pci_ops,
pbm);
+#if 0
pci_fixup_host_bridge_self(pbm->pci_bus);
pbm->pci_bus->self->sysdata = cookie;
+#endif
- pci_fill_in_pbm_cookies(pbm->pci_bus, pbm, pbm->prom_node);
+ pci_fill_in_pbm_cookies(pbm->pci_bus, pbm,
+ prom_getchild(pbm->prom_node));
pci_record_assignments(pbm, pbm->pci_bus);
pci_assign_unassigned(pbm, pbm->pci_bus);
pci_fixup_irq(pbm, pbm->pci_bus);
@@ -631,8 +646,65 @@ static unsigned int pci_sun4v_irq_build(struct pci_pbm_info *pbm,
struct pci_dev *pdev,
unsigned int ino)
{
- /* XXX Implement me! XXX */
- return 0;
+ struct ino_bucket *bucket;
+ unsigned long sysino;
+ u32 devhandle = pbm->devhandle;
+ int pil;
+
+ sysino = sun4v_devino_to_sysino(devhandle, ino);
+
+ printk(KERN_INFO "pci_irq_buld: Mapping ( devh[%08x] ino[%08x] ) "
+ "--> sysino[%016lx]\n", devhandle, ino, sysino);
+
+ pil = 4;
+ if (pdev) {
+ switch ((pdev->class >> 16) & 0xff) {
+ case PCI_BASE_CLASS_STORAGE:
+ pil = 4;
+ break;
+
+ case PCI_BASE_CLASS_NETWORK:
+ pil = 6;
+ break;
+
+ case PCI_BASE_CLASS_DISPLAY:
+ pil = 9;
+ break;
+
+ case PCI_BASE_CLASS_MULTIMEDIA:
+ case PCI_BASE_CLASS_MEMORY:
+ case PCI_BASE_CLASS_BRIDGE:
+ case PCI_BASE_CLASS_SERIAL:
+ pil = 10;
+ break;
+
+ default:
+ pil = 4;
+ break;
+ };
+ }
+ BUG_ON(PIL_RESERVED(pil));
+
+ bucket = &ivector_table[sysino];
+
+ /* Catch accidental accesses to these things. IMAP/ICLR handling
+ * is done by hypervisor calls on sun4v platforms, not by direct
+ * register accesses.
+ */
+ bucket->imap = ~0UL;
+ bucket->iclr = ~0UL;
+
+ bucket->pil = pil;
+ bucket->flags = IBF_PCI;
+
+ bucket->irq_info = kmalloc(sizeof(struct irq_desc), GFP_ATOMIC);
+ if (!bucket->irq_info) {
+ prom_printf("IRQ: Error, kmalloc(irq_desc) failed.\n");
+ prom_halt();
+ }
+ memset(bucket->irq_info, 0, sizeof(struct irq_desc));
+
+ return __irq(bucket);
}
static void pci_sun4v_base_address_update(struct pci_dev *pdev, int resource)
@@ -834,10 +906,35 @@ static void pci_sun4v_iommu_init(struct pci_pbm_info *pbm)
probe_existing_entries(pbm, iommu);
}
+/* Don't get this from the root nexus, get it from the "pci@0" node below. */
+static void pci_sun4v_get_bus_range(struct pci_pbm_info *pbm)
+{
+ unsigned int busrange[2];
+ int prom_node = pbm->prom_node;
+ int err;
+
+ prom_node = prom_getchild(prom_node);
+ if (prom_node == 0) {
+ prom_printf("%s: Fatal error, no child OBP node.\n", pbm->name);
+ prom_halt();
+ }
+
+ err = prom_getproperty(prom_node, "bus-range",
+ (char *)&busrange[0],
+ sizeof(busrange));
+ if (err == 0 || err == -1) {
+ prom_printf("%s: Fatal error, no bus-range.\n", pbm->name);
+ prom_halt();
+ }
+
+ pbm->pci_first_busno = busrange[0];
+ pbm->pci_last_busno = busrange[1];
+
+}
+
static void pci_sun4v_pbm_init(struct pci_controller_info *p, int prom_node, unsigned int devhandle)
{
struct pci_pbm_info *pbm;
- unsigned int busrange[2];
int err, i;
if (devhandle & 0x40)
@@ -898,16 +995,7 @@ static void pci_sun4v_pbm_init(struct pci_controller_info *p, int prom_node, uns
memset(&pbm->pbm_intmask, 0, sizeof(pbm->pbm_intmask));
}
- err = prom_getproperty(prom_node, "bus-range",
- (char *)&busrange[0],
- sizeof(busrange));
- if (err == 0 || err == -1) {
- prom_printf("%s: Fatal error, no bus-range.\n", pbm->name);
- prom_halt();
- }
- pbm->pci_first_busno = busrange[0];
- pbm->pci_last_busno = busrange[1];
-
+ pci_sun4v_get_bus_range(pbm);
pci_sun4v_iommu_init(pbm);
}